So you've seen the strange brain-to-computer Pong
interface, now check out this new system -- developed at Washington Unversity -- that "allowed a 14-year old gamer suffering from epilepsy to cruise through the first two levels of Space Invaders using only his" thoughts.
...programmed an Atari 2600 to interface with the brain-sensing apparatus. The headgear boasted a grid of sensors that monitored "electrocorticographic activity" from the brain's surface to detect signals based on thought processes that were going on. By calibrating his thoughts with video game triggers, the teenager was able to learn the ropes "almost instantaneously," and had no qualms demolishing the competition while twiddling his thumbs